EGGR 489

All names: 1524+566, PM J15257+5629, Gaia EDR3 1602197696772907648, USNO-B1.0 1464-00259465, TIC 165735741, EGGR 489, Gaia DR3 1602197696772907648, LP 135-438, 2MASS J15254295+5629088, NLTT 40241, Gaia DR2 1602197696772907648, 15257+5629, LSPM J1525+5629, J1525+5629, GALEX J152542.9+562909, WDJ152542.94+562908.61, PSO J231.4284+56.4851, WD 1524+566

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Blouin et al. 2019 Leggett et al. 2018 MWDD H MWDD HE Gaia DR2 Stilism Limoges et al. 2015 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 15 25 42.81 (0.04) 15 25 42.81 (0.05) 15 25 42.81 (0.05) 15 25 42.81 15 25 42.94 (0.04) 15 25 42.81 15 25 44.78
Declination 56 29 06.27 (0.04) 56 29 06.35 (0.05) 56 29 06.35 (0.05) 56 29 06.27 56 29 08.61 (0.04) 56 29 06.35 56 29 33.36
Spectral type DA DA DC DC DA9.2 DC DC DC DA DC9 DC9
Effective temperature [K] 5497.0 (39) 5532.0 (14) 5360.5 (20) 5180.0 (75) 5485.0 (96) 5501.0 5225.0 5520.0 (71) 5529.0 (23)
log(g) [cgs] 7.85 (0.03) 7.86 (0.006) 7.80 (0.01) 7.64 (0.04) 7.82 (0.04) 7.85 7.65 8.00 (0) 7.87 (0.01)
Mass [M] 0.499 (0.01) 0.506 (0.005) 0.374 (0.02) 0.483 (0.03) 0.496 0.38 0.58 (0.1) 0.507 (0.008)
log(Luminosity) [L] -3.87
Cooling age [Gyr] 2.3700 2.5320 (0.1) 2.2220 (0.2) 2.2970 2.5270
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 31.04 (0.04) 31.04 (0.04) 30.92 (0.05) 30.92 (0.05) 30.92 (0.05) 30.65 (0.6) 30.92 (0.05) 31.04 31.04 (0.04) 30.92 (0.05)
Distance [pc] 32.22 (0.04) 32.22 (0.04) 32.34 (0.05) 32.34 (0.06) 32.34 (0.06) 32.63 (0.6) 32.34 (0.06) 28.80 (5) 32.22 32.22 (0.04) 32.34 (0.06)
Composition H He He H
Proper motion (right ascension) [mas/yr] -70.66396657 (0.05) -70.63177964 (0.09) -70.664 (0.04) -70.63177964
Proper motion (declination) [mas/yr] -146.2287811 (0.05) -146.2152207 (0.1) -146.229 (0.05) -146.2152207
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.61
V magnitude
R magnitude 16.30
I magnitude
J magnitude 15.66 (0.009) 15.51 (0.05) 15.51 (0.05)
H magnitude 15.21 (0.08) 15.21 (0.08) 15.21 (0.08)
K magnitude 15.10 (0.1) 15.10 (0.1) 15.10 (0.1)
u magnitude 18.38 (0.02) 18.41 (0.01)
g magnitude 17.18 (0.005) 17.23 (0.005)
r magnitude 16.72 (0.003) 16.73 (0.004)
i magnitude 16.56 (0.003) 16.54 (0.005)
z magnitude 16.50 (0.003) 16.48 (0.008)
G magnitude 16.75 (0.005) 16.76 16.76 16.75 16.75 (0.003) 16.76
BP magnitude 17.12 (0.005) 17.13 17.13
RP magnitude 16.21 (0.004) 16.21 16.21
Pan g magnitude 17.18 (0.005) 17.18 (0.005) 17.18 (0.005)
Pan r magnitude 16.72 (0.004) 16.72 (0.003) 16.72 (0.003)
Pan i magnitude 16.56 (0.003) 16.56 (0.003) 16.55 (0.003)
Pan z magnitude 16.50 (0.003) 16.50 (0.003) 16.50 (0.003)
Pan y magnitude 16.49 (0.009) 16.49 (0.008) 16.49 (0.008)
E(B-V) 0.003

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.